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JEE Main 17 March 2021, Shift 1, Physics Q10

Question 10 of 90 in this shift, Physics question 10 of 30, Section A.

A triangular plate is shown. A force

\vec{F}=4\hat{i}-3\hat{j}

is applied at point P. The torque at point P with respect to point 'O' and 'Q' are :

The figure, in words

Triangle OPQ with O at the origin of X and Y axes and Q on the X axis; apex P above. OP is labelled 10 cm, PQ is labelled 10 cm, OQ is labelled 10 cm; the angle at O is marked 60° and the angle at Q is marked 60°. An arrow labelled F is drawn at P directed towards P (down and to the right).

(1) $-15-20\sqrt3,\ 15-20\sqrt3$ Official answer
(2) $15+20\sqrt3,\ 15-20\sqrt3$
(3) $15-20\sqrt3,\ 15+20\sqrt3$
(4) $-15+20\sqrt3,\ 15+20\sqrt3$

Official answer

Option 1

NTA final key.

Chapter: System of Particles and Rotational Motion
Topic: Torque and Equilibrium
Idea tested: 3D Torque Components

JEE Main 17 March 2021, Shift 1, Physics Q10

Same idea in other shifts